One. The insulation circuit of the elbow is always discussed in the adjacent place, do not touch! If an external help power cord socket has been installed, it is not allowed to touch, only to allow professional staff to open the attachment of electricity.
Two. Before using the machine, the voltage of all the transformers is changed to the voltage supplied by the local machine, warning! Before the machine is sent from the manufacturer, it must be connected with an important insulated switch in the electrical box.
Three. A stiff power supply must be a three-phase power supply and grounded in accordance with local power legislation.